HIMA X-SB01 (Item No.985210207) HIMax System Bus Module & HIMA X-FAN 18 03 HIMax Rack Fan Unit

  • X-SB01 985210207: HIMax system bus module (subject)
  • X-FAN 18 03: HIMax 18-slot rack fan tray (subject)
  • F8650X 984865065: HIMax main safety CPU
  • F8651X: HIMax redundant power supply module
  • F8621A: HIMax SafeEthernet communication module
  • X-DI01: HIMax digital input module
  • X-DO01: HIMax digital output module
  • F-CPU01: HIQuad X safety CPU (different platform, not interchangeable)
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Description

HIMA X-SB01 (Item No.985210207) HIMax System Bus Module & HIMA X-FAN 18 03 HIMax Rack Fan Unit

 

Core Product Overview

X-SB01 (985210207) is the HIMax rack system bus module. It forms the internal high-integrity communication backbone of the HIMax SIS rack, transferring cyclic safety data between F8650X safety CPUs, power supplies and HIMax I/O modules. It supports single or redundant bus topology, with built-in bus diagnostics, status LEDs and a PADT local service port for SILworX engineering and troubleshooting. TÜV certified for SIL 3.

X-FAN 18 03 is the dedicated fan tray assembly for HIMax racks. It provides forced convection cooling for HIMax Eurocard modules including CPUs, system bus modules and I/O cards. It monitors fan speed and reports fan failure via the system bus to the safety controller. Adequate airflow from X-FAN 18 03 is mandatory to maintain the rated operating temperature of X-SB01, F8650X and other electronics; loss of cooling can trigger module overtemperature faults and SIS trips. Both components are key infrastructure parts of HIMax safety racks for ESD, FGS and HIPPS.

 

Main Technical Specifications

X-SB01 985210207

  • Part Number: X-SB01, HIMA Item No. 985210207
  • Manufacturer: HIMA Paul Hildebrandt (Germany)
  • Device Type: HIMax System Bus Module
  • Safety Certification: TÜV, SIL 3 (IEC 61508 / IEC 61511)
  • Interfaces: 2 × System Bus (Up / Down), 1 × PADT service port, 1 × Diagnostic port
  • Status LEDs: Run, Error, Stop, Init, Redundancy, Rack link status
  • Power Supply: 24 VDC, approx. 0.65 A
  • Cooling: Passive, dependent on rack fan airflow
  • Operating Temperature: -20°C ~ +60°C
  • Humidity: 10%–95% non-condensing
  • Protection: IP20
  • Form Factor: HIMax Eurocard plug-in module

X-FAN 18 03

  • Part Number: X-FAN 18 03
  • Manufacturer: HIMA Paul Hildebrandt (Germany)
  • Device Type: HIMax Rack Fan Unit
  • Function: Forced air cooling + fan speed monitoring and fault signalling
  • Power Supply: 24 VDC from HIMax rack
  • Fan Quantity: Multiple fans integrated in one tray for 18-slot HIMax rack
  • Diagnostics: Fan speed feedback, fan failure alarm reported over HIMax system bus
  • Mounting: Dedicated fan tray at top/bottom of 18-slot HIMax chassis
  • Operating Temperature Range: Supports full rated temperature envelope of HIMax modules
  • Humidity: 10%–95% non-condensing
  • Protection: IP20
  • Status: Active supported HIMax accessory; spares available as new surplus or refurbished tested units

 

Same-Series Model Recommendations (8 Models)

  • X-SB01 985210207: HIMax system bus module (subject)
  • X-FAN 18 03: HIMax 18-slot rack fan tray (subject)
  • F8650X 984865065: HIMax main safety CPU
  • F8651X: HIMax redundant power supply module
  • F8621A: HIMax SafeEthernet communication module
  • X-DI01: HIMax digital input module
  • X-DO01: HIMax digital output module
  • F-CPU01: HIQuad X safety CPU (different platform, not interchangeable)

X-FAN 18 03

Professional Quality Control & Testing Standard Operating Procedures

X- 985210207

  1. Visual inspection: PCB, edge fingers, LEDs, capacitors, solder joints, part number and TÜV label check
  2. Backplane power bench test on HIMax rack, 24VDC supply, verify stable rails
  3. Power-on self-test, read firmware, check for permanent hardware faults
  4. Daisy-chain bus test: validate Up/Down system bus links and redundancy switchover
  5. PADT port test, connect SILworX, confirm identification and fault reporting
  6. Rack communication test with F8650X CPU and HIMax I/O modules
  7. Thermal soak test to expose intermittent timing or connector defects
  8. Clean edge contacts, reset configuration, ESD packaging with test certificate

X-FAN 18 03

  1. Visual inspection of fan tray housing, fan blades, wiring harness and connector
  2. 24VDC power test, verify fan startup and smooth rotation, no abnormal noise or vibration
  3. Fan speed signal test: confirm speed feedback and fan-failure alarm to HIMax bus
  4. Interface test with X- and CPU, verify fan fault is visible in SILworX diagnostics
  5. Continuous running burn-in to detect early fan bearing wear
  6. Thermal airflow test in 18-slot chassis to confirm cooling performance
  7. Connector pin check for corrosion or damage
  8. Final cleaning, function label, ESD packaging with test report

 

New / Refurbished Installation Guidelines

  1. Pre-Installation Safety: Lockout-tagout; isolate 24V rack supply and field safety circuits to prevent unintended SIS trips.
  2. Rack Pre-check: Confirm HIMax 18-slot chassis, proper protective earth, and compatible backplane.
  3. X-FAN 18 03 Mounting: Install fan tray in designated chassis position; secure fasteners, connect fan harness to rack bus.
  4. : Align edge connector with HIMax backplane, insert gently, secure front panel screws; wire Up/Down system bus cables.
  5. Wiring Best Practice: Use HIMA specified shielded cables for system bus; segregate safety cables from high-power wiring.
  6. Offline Functional Test: Power rack without field loads; verify X- bus LEDs, PADT communication, fan rotation and fan fault alarm in SILworX.
  7. Commissioning & Acceptance: Validate full rack communication between CPU and I/O; test cooling loss alarm, archive SILworX project and test records.

 

Application Scenarios & Product Features

Typical Application Scenarios

  • ESD Emergency Shutdown Systems for refineries, chemical plants and offshore assets
  • FGS Fire and Gas detection and interlock systems
  • HIPPS High Integrity Pressure Protection Systems
  • BMS Burner Management for gas turbines and industrial boilers
  • 18-slot HIMax safety racks in power generation critical safety interlocks
  • Spare replacement, maintenance and retrofit of existing HIMax SIS installations

Core Product Features

X- 985210207

  • SIL 3 certified system bus for HIMax safety racks
  • Supports mono or redundant bus topology for higher availability
  • Up/Down bus ports for multi-rack daisy-chain expansion
  • PADT service port for local SILworX maintenance and diagnostics
  • Cyclic deterministic safety data exchange between CPU and I/O
  • Comprehensive bus fault diagnostics with front panel LED status
  • Hot-swap capable only under approved SIS bypass procedures

X-FAN 18 03

  • Purpose-built fan tray for 18-slot HIMax chassis
  • Provides mandatory forced convection cooling for X-, F8650X and I/O modules
  • Fan speed monitoring with fault alarm over HIMax system bus
  • Over-temperature protection support for the whole safety rack
  • Integrated wiring connector matching HIMax rack infrastructure
  • Fan failure diagnostics visible in SILworX for predictive maintenance

 

Frequently Asked Questions (FAQ)

A1: It may boot for short bench testing, but continuous operation in the field is not permitted. Without the X-FAN 18 03 airflow, modules will overheat and trigger safety faults.

Q2: Can X-FAN 18 03 be used on smaller HIMax racks (non-18 slot)? A2: No, X-FAN 18 03 is designed specifically for the 18-slot HIMax chassis; smaller racks use different fan units.

A3: No, X- belongs to HIMax and uses a proprietary HIMax bus; it cannot be used with HIQuad X hardware.

Q4: Can I replace X-FAN 18 03 while the SIS rack is online? A4: HIMax supports module hot-swap hardware-wise, but loss of cooling may raise overtemperature alarms. Follow site SIS bypass and work permit procedures before fan tray exchange.

Q5: What are common failure modes? A5:

  • X-: Edge connector oxidation, ESD damage to bus ports, ageing capacitors, voltage transient induced firmware corruption
  • X-FAN 18 03: Fan bearing wear, abnormal noise, loss of speed feedback signal, harness connector corrosion